Home / 161,631.54-223,053.71-90,013.36

Finding the Fourth Proportional to 161,631.54, 223,053.71 and 90,013.36

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Solution

The fourth proportional to 161,631.54, 223,053.71 and 90,013.36 is: 124,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,631.54 : 223,053.71 = 90,013.36 : x
  2. Step 2: Convert to fraction form
    161,631.54/223,053.71 = 90,013.36/x
  3. Step 3: Cross multiply
    161,631.54x = 223,053.71 × 90,013.36
  4. Step 4: Simplify right side
    161,631.54x = 20,077,813,897.57
  5. Step 5: Solve for x
    x = 20,077,813,897.57/161,631.54
  6. Step 6: Final answer
    x = 124,219.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.